Unex SOM-352 Series User Manual

Doc. No: Unex-QSG-21-003
16/30
A printed version of this document is an uncontrolled copy
© 2023 Unex Technology Corporation – Company Confidential
Pin
Symbol
Type
Level (V)
Description
Note
35
GND
G
-
Ground
37
GND
G
-
Ground
39
3.3 Vaux
P
3.3
Powered by 5V: 115mA (max)
Powered by 3.3 Vaux: 3000mA (max)
41
3.3 Vaux
P
3.3
Powered by 5V: 115mA (max)
Powered by 3.3 Vaux: 3000mA (max)
43
GND
G
-
Ground
45
5V
P
5
5V/2A power input
Proprietary
47
5V
P
5
5V/2A power input
Proprietary
49
1PPS
I (PU)
3.3
GNSS 1PPS input (active HIGH)
Proprietary
51
TAMPER#
I
(PU/PD)
3.3
Tamper detection (active LOW)
PU/PD decided by SW1.7
TRIGGER_SW ON: 1KΩ PU
TRIGGER_SW OFF: 32KΩ PD (min)
Proprietary
Table 9: SOM-352 mini PCIe row 1 pinout
Pin
Symbol
Type
Level (V)
Description
Note
2
3.3 Vaux
P
3.3
Powered by 5V: 115mA (max)
Powered by 3.3 Vaux: 3000mA (max)
4
GND
G
-
Ground
6
NC
-
-
Not connected
8
NC
-
-
Not connected
10
NC
-
-
Not connected
12
NC
-
-
Not connected
14
NC
-
-
Not connected
16
NC
-
-
Not connected
-
KEY
-
-
Mechanical key
18
GND
G
-
Ground
20
NC
-
-
Not connected
22
PERST#
I (PU)
3.3
CRATON2 reset (2KΩ PU, active LOW)
Signal rising edge (0 → 1) will reset
mPCIe module
24
3.3 Vaux
P
3.3
Powered by 5V: 115mA (max)
Powered by 3.3 Vaux: 3000mA (max)
26
GND
G
-
Ground
28
NC
-
-
Not connected
30
NC
-
-
Not connected
32
NC
-
-
Not connected
34
GND
G
-
Ground
36
USB_D-
I/O
0.4
USB data line -
38
USB_D+
I/O
0.4
USB data line +
40
GND
G
-
Ground
42
NC
-
-
Not connected
44
NC
-
-
Not connected
46
BOOTSTRP
I (PD)
3.3
BOOT_SW ON:
0 or NC: Boot from NAND
1: Boot from USB0 (DFU mode)
BOOT_SW OFF:
0/1/NC: Boot from USB0 (DFU mode)
Proprietary
48
NC
-
-
Not connected
50
GND
G
-
Ground

Unex SOM-352 Series Specifications

General

Brand	Unex
Model	SOM-352 Series
Category	Control Unit
Language	English